/**
 * Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Description: arena allocator interface.
 */

#ifndef DATASYSTEM_COMMON_SHARED_MEMORY_MMAP_ALLOCATION_H
#define DATASYSTEM_COMMON_SHARED_MEMORY_MMAP_ALLOCATION_H

#include <memory>

namespace datasystem {
namespace memory {
struct Allocation {
    void *pointer = nullptr;
    int fd = -1;
    ptrdiff_t offset = 0;
    uint64_t mmapSize = 0;
    Allocation() {}
    Allocation(void *pointer, int fd, ptrdiff_t offset, uint64_t mmapSize)
        : pointer(pointer), fd(fd), offset(offset), mmapSize(mmapSize)
    {
    }
};
}  // namespace memory
}  // namespace datasystem

#endif